A nurse in an emergency department is reviewing a client's ECG reading.
Which of the following findings should the nurse identify as an indication that the client has first-degree heart block?
Prolonged PR intervals.
Nondiscernible P waves.
More P waves than QRS complexes.
No correlation between P and QRS waves.
The Correct Answer is A
First-degree heart block is a type of atrioventricular (AV) block that involves the consistent prolongation of the PR interval (defined as >0.20 seconds) due to delayed conduction via the atrioventricular node.
This is seen on an ECG as a PR interval greater than 200 ms in length.
Choice B: Nondiscernible P waves are not an answer because it is not mentioned as a characteristic of first-degree heart block in my sources.
Choice C: More P waves than QRS complexes is not an answer because it is not mentioned as a characteristic of first-degree heart block in my sources.
Choice D: No correlation between P and QRS waves is not an answer because it is not mentioned as a characteristic of first-degree heart block in my sources.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
The nurse should apply new gloves when alternating between wound care sites.
This is to prevent cross-contamination and infection.
Choice A, cleaning the equipment in the client’s room once per week, is not an answer because it is not mentioned in the search results as an intervention for a client with full-thickness burns on the lower extremities.
Choice B, providing a diet of fresh fruits and vegetables for the client, is not an answer because it is not mentioned in the search results as an intervention for a client with full-thickness burns on the lower extremities.
Choice C, limiting visitation time for the client’s children to 40 min per day, is not an answer because it is not mentioned in the search results as an intervention for a client with full-thickness burns on the lower extremities.
Correct Answer is C
Explanation
The nurse should place the client in a position with their feet elevated.
This position helps to increase blood flow to the vital organs and can help improve the client’s blood pressure.
Choice A is not the answer because the Reverse Trendelenburg position does not help improve blood flow to vital organs.
Choice B is not the answer because the side-lying position does not help improve blood flow to vital organs.
Choice D is not the answer because High-Fowler’s position does not help improve blood flow to vital organs.
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